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When the electric motor has problems in half the superheated main winding, the problem may be caused by a fault in the switching key is when positioning the lower voltage supply; the peak loads cause the closing of the centrifugal and platinum with the electric motor fed into higher voltage or half of the winding burn is one that is not in parallel with the auxiliary winding.

In presenting short problems among both primary windings as assist the electric motor with a starting capacitor or split-phase, which has no capacitor, the contamination occurred inside the electric motor, the fault may also be in the enamel that insulates the wire or varnish that makes the impregnation the electric motor.

The problem in the short between primary windings and assist in motors with permanent capacitor, the problem also occurs contamination of the inside of the electric motor, or because there was degradation of the insulating material driven by dryness or failure in the insulating material that lies between the main and the auxiliary.

In circuits involving the electric motor, they have two types of protection are: protection of the electric motor against overload / blocked rotor and circuit protection (terminal and distribution) against short circuit.

The electric motor used in a continuous regime should be protected against overloads is by a member device of the electric motor, or a device that protects independently what is generally a thermal relay with rated current or setting that may be equal to or less the value to be obtained by multiplying the nominal power supply of the electric motor at full load and so: 1.25 to electric motor with service factor equal to or greater than 1.15, or even 1.15 to electric motor with service factor to be equal to 1.0.

When the customer asks, the electric motor has with overheating protection devices in cases where the motor is overloaded, caught, with low tension and lack of ventilation in the electric motor, such as a thermostat, thermistor, resistance thermometers type PT100, without making use of devices that are independent.

The degradation of thermal insulation is a very common problem to the electric motor, but to end this problem some recommendations are important for maintaining the life of thermal insulation.

The procedures for maintaining the thermal insulation in operation are equipping power frames with devices that protect and commands that are appropriate and then will be checked periodically functioning; it takes advantage of the electric engine stop periods to be clean the coils of the windings; if accurate, is indicated install filters on the electric motor of the ventilation system and this provides proper maintenance.

It is also important that the electric motor is placed in salubrious locations, consider whether there is smoke detachment; the isolation conditions should be checked periodically; the electric motor should be equipped with alarm devices and protection against short circuits; the electric motor may not have loud noises and untimely vibrations; It is still important to note signs of overheating, and also verify that the expected frequency in the electric motor is actually equal the frequency of the power network.

When the electric motor gives a match that is assessed as very time consuming, it means that the equipment of the engine torque is slightly higher than the resistive torque and the result will be the overcurrent of the current that is absorbed by the electric motor even when the speed nominal is not reached and the result will be a heated electric motor in a dangerous manner.

Likewise, braking is carried out by counter-current means that the reversal of the electric motor is a very common way a cost equivalent to three matches of the electric motor and in all these situations is essential that it is provided a conjugate of starting to be able to choose a suitable electric motor; see if the power line has its own characteristics so that the voltage drop limitation on starting is required; We must keep the load coupled to the electric motor always in a manner appropriate to operate in a manner that is not presented abnormal resistive torque.

The maintenance of the electric motor is a very important procedure that should not miss. Whenever the professional feel unsure how to perform this procedure correctly indicated that he look for information and suggestions about. The operation of the machine depends on the correct maintenance.

The electric motors are used to make the conversion of electrical energy into mechanical energy, but for this they need to be in perfect working order. The task of this engine is very important for various segments is why it is being increasingly used. He can make the transformation of these energies more economically.

You must set the period for which maintenance can be performed. The maintenance allows identification of any defective part or even a renewed for the engine to continue with high performance. There are professional and specialized teams in this procedure, if the company is in need is interesting to hiring.

The electric motor of four-stroke was developed smoothly, because then the durability of the electric motor will be prolonged if the instructions in the manufacturer’s instructions are followed to the letter. The owner’s manual should be read before putting the electric motor in operation for damage and injuries are avoided.

The electric motor has an air filter should be cleaned frequently, but the electric motor should not go into operation without the air filter or the filter element is replaced, because the result will be a significant decrease in the life of electric motor.

It is very important to check what is the filter element of the conservation status which can also be called foam. If necessary, it is also essential to carry out the cleaning of the filter element also called foam.